Originally Posted by guitarguy316
I’m sure it’s becasue they are tweaking it or found some bug. Makes no sense to send out to reviewers who will discuss it but then not release it to the public. I’m not worried and assume it’ll come in a software update.
I have a theory as to what happened with the improved BFI.
It was developed, it was working, it shipped out on review units.
In parallel, LGE was working on the C8 FW fix for the macroblocking issue on 2018 WOLEDs. The undated C8 FW has finally been released, effectively resolves the macroblocking issue from all reports, and apparently employs ditheringing of near-blacks as an important element in this new solution.
Dithering is essentially BFI on the single-pixel level (rather than the whole-panel level). So my theory is that when they decided they needed to incorporate the macoblocking fix into the C9 production FW, they realized it caused a conflict with the new 3.5ms OLED Motion Pro BFI and they had to choose one or the other.
Launching the 2019 TVs with improved near-black performance (and no repeat of a PQ defect that had alreeady been reported and resolved) won out over delivering improved BFI.
So my guess is that the production FW backed out all
of the new BFI features and fell back on the 2018 BFI FW.
The unknown is whether, with time, LG will find a way to support 3.5ms MPRT while supporting the dithering needed for macroblocking solution.
But for now, it looks the C9s are limited to pretty much being C8s with HDMI 2,1...